SOLAR CELLLS-THE FOUNDTION OF SOLAR ENERGY full report | |ABSTRACT | | | |A solar cell is a semiconductor device | | | |that converts solar energy into | | | |electricity by the photovoltaic effect‚ | | | |representing the fundamental power | | | |conversion unit of a photovoltaic system| | | |‚works under the principle of a P-N | | | |junction that absorbs light ‚ releases | | | |electrons and holes ‚ creating a voltage| | | |in the cell
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imagine life without it is the light bulb. Thomas Alva Edison invented the light bulb in the year 1879. With the advancement in technology‚ today we have different types of light bulbs such as Incandescent‚ Halogen‚ Fluorescent‚ Compact Fluorescent Lamps‚ High-Intensity Discharge Lamps‚ Low-Pressure Sodium Lamps‚ LED (Light Emitting Diodes). The most common light bulbs that are generally used for household purposes are compact fluorescent and incandescent light bulbs. Incandescent lighting is very
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I chose some specific articles related to Thomas Edison’s invention of the light bulb‚ and for numerous reasons. The main reason being I wanted to see what it would be like to step back in time to the absolute wonderment surrounding such an exciting and revolutionary invention. In our current age‚ when we can literally teleport objects like atoms from one place to another‚ I feel it’s safe to say the light bulb is something we all take for granted‚ at best‚ and more likely‚ don’t even think about
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Bottle bank What happens to the bottle we throw into the bin? Everything starts with a bottle which is thrown into the bin or‚ to be more specific‚ into the bottle bank. Bottle bank is a special container‚ used for recycling many types of bottles‚ from plastic bottles to glass bottles. There are also bottle banks which are separated by colour of bottles like brown bottles‚ green bottles‚ clear bottles and so on. But what is recycling anyway? Recycling means turning materials from waste into something
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• Message in a Bottle Survives Epic Journey by Mike Krumboltz 7 hours ago Last year‚ a high school student named Corey Swearingen put a letter in a bottle‚ sealed it up‚ and dropped it in the Atlantic Ocean‚ off the Florida coast. It was kind of an experiment for school. In the letter‚ he appealed to whomever came across the bottle to contact him and let him know where in the world it showed up. Amazingly‚ someone did. About 16 months after the bottle was dropped‚ Swearingen’s marine science
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Solar seeker: In this project we design a solar seeker to follow a sun. solar seeker follow the sun and if the sensor attach on the sensor a sense a sun then solar seeker is stop automatically. Now after some time sun move from its position‚ then again seeker sensor sense the light and move the motor very slowly. If the sensor sense the signal then automatically stop the seeker . Movement of the seeker is restricted from left to right for limited area. To control the left and right limit
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Massage in a bottle Samantha Landon 1210 East Cliff Rd. Bar Harbor Maine 04605‚ USA 24th August 2008 To the person who finds this bottle: I’m so glad that you have found this message. I am Samantha Landon‚ and please just read my message. Then I know that someone knows what I have been through. As I said‚ I am Samantha Landon and I live at Bar Harbor Maine 04605‚ USA. Or lived. Me and my mom and dad went out for this trip at the ocean‚ in my dad’s new speedboat. It moved so fast
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environmentalists such as Thomas Friedman believe that the use and production of sustainable energy resources is the way of the future and particularly vital to the advancement of the human race and the world‚ as we know it. As renewable energy sources such as solar power continue to become a more sought after approach for our everyday energy needs‚ engineers and environmentalists are developing innovative ideas for renewable energy and are also discussing the benefits of this new technology. It seems as though
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The Water Bottle The station was painfully close. I was racing through the desert‚ the sun slowly roasting and marinating me‚ soon id be a meal for the grim reaper. Sand tore away under the wheels of my bike as I rode hard east. Looking down into my lap‚ I eyed the package. I could abscond. It wouldn’t take me long to make it over the border‚ and with this package id be set for life. “If only.” Letting out a sigh‚ I sped to the station. Water was life. Water was money. Water was power. These
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Solar Energy Solar energy in one form or another is the source of nearly all energy on the earth. Humans‚ like all other animals and plants‚ rely on the sun for warmth and food. However‚ people also harness the sun’s energy in many other different ways. For example‚ fossil fuels‚ plant matter from a past geological age‚ is used for transportation and electricity generation and is essentially just stored solar energy from millions of years ago. Similarly‚ biomass converts the sun’s energy into a
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